my guess is it has to do with how the borders are supposed to interact when something is behind it, in the picture if u look, between the split u will see part of the trenchcoat, but the boarders become transparent.
i've been working for a QA department for a game company (not going to say which for obvious reasons) and now unfortunatly i now find random things throughout any game i play reguarding bugs
*raise fist* cuts into muh playtime! lol
you said somthing about not being able to post pictures in?